diff --git a/apps/efka/src/docker/docker_commands.erl b/apps/efka/src/docker/docker_commands.erl
index 58909ab..186dff5 100644
--- a/apps/efka/src/docker/docker_commands.erl
+++ b/apps/efka/src/docker/docker_commands.erl
@@ -43,7 +43,7 @@ create_container(ContainerName, ContainerDir, Config) when is_binary(ContainerNa
     NewConfig = Config#{<<"volumes">> => Volumes},
 
     Options = build_options(ContainerName, NewConfig),
-    lists:foreach(fun({K, V}) -> lager:debug("~p => ~p", [K, V]) end, maps:to_list(Options)),
+    display_options(Options),
 
     Body = iolist_to_binary(jiffy:encode(Options, [force_utf8])),
     Headers = [
@@ -59,7 +59,9 @@ create_container(ContainerName, ContainerDir, Config) when is_binary(ContainerNa
                     {error, Msg};
                 _ ->
                     {error, ErrorResp}
-            end
+            end;
+        {error, Reason} ->
+            {error, Reason}
     end.
 
 -spec is_container_running(ContainerId :: binary()) -> boolean().
@@ -434,4 +436,8 @@ build_extra_hosts(Config) ->
             #{};
         _ ->
             #{<<"ExtraHosts">> => Hosts}
-    end.
\ No newline at end of file
+    end.
+
+-spec display_options(Options :: map()) -> no_return().
+display_options(Options) when is_map(Options) ->
+    lists:foreach(fun({K, V}) -> lager:debug("~p => ~p", [K, V]) end, maps:to_list(Options)).
diff --git a/apps/efka/src/docker/docker_deployer.erl b/apps/efka/src/docker/docker_deployer.erl
index e1672c2..520ee3a 100644
--- a/apps/efka/src/docker/docker_deployer.erl
+++ b/apps/efka/src/docker/docker_deployer.erl
@@ -41,52 +41,36 @@ start_monitor(TaskId, ContainerDir, Config) when is_integer(TaskId), is_list(Con
 deploy(TaskId, ContainerDir, Config) when is_integer(TaskId), is_list(ContainerDir), is_map(Config) ->
     %% 尝试拉取镜像
     ContainerName = maps:get(<<"container_name">>, Config),
+    log(TaskId, <<"info">>, <<"开始部署容器:"/utf8, ContainerName/binary>>),
 
-    Msg = <<"开始部署容器:"/utf8, ContainerName/binary>>,
-    efka_remote_agent:task_event_stream(TaskId, <<"info">>, Msg),
-    efka_logger:write(format_log(TaskId, <<"info">>, Msg)),
-
+    ContainerName = <<>>,
     case docker_commands:check_container_exist(ContainerName) of
         true ->
-            Msg1 = <<"本地容器已经存在:"/utf8, ContainerName/binary>>,
-            efka_remote_agent:task_event_stream(TaskId, <<"info">>, Msg1),
-            efka_remote_agent:close_task_event_stream(TaskId),
-            efka_logger:write(format_log(TaskId, <<"info">>, Msg1));
+            log(TaskId, <<"info">>, <<"本地容器已经存在:"/utf8, ContainerName/binary>>),
+            efka_remote_agent:close_task_event_stream(TaskId);
         false ->
             Image0 = maps:get(<<"image">>, Config),
             Image = normalize_image(Image0),
 
-            Msg2 = <<"使用镜像:"/utf8, Image/binary>>,
-            efka_remote_agent:task_event_stream(TaskId, <<"info">>, Msg2),
-            efka_logger:write(format_log(TaskId, <<"info">>, Msg2)),
-
+            log(TaskId, <<"info">>, <<"使用镜像:"/utf8, Image/binary>>),
             PullResult = case docker_commands:check_image_exist(Image) of
                              true ->
-                                 Msg3 = <<"镜像本地已存在:"/utf8, Image/binary>>,
-                                 efka_remote_agent:task_event_stream(TaskId, <<"info">>, Msg3),
-                                 efka_logger:write(format_log(TaskId, <<"info">>, Msg3)),
+                                 log(TaskId, <<"info">>, <<"镜像本地已存在:"/utf8, Image/binary>>),
                                  ok;
                              false ->
-                                 Msg4 = <<"开始拉取镜像:"/utf8, Image/binary>>,
-                                 efka_remote_agent:task_event_stream(TaskId, <<"info">>, Msg4),
-                                 efka_logger:write(format_log(TaskId, <<"info">>, Msg4)),
+                                 log(TaskId, <<"info">>, <<"开始拉取镜像:"/utf8, Image/binary>>),
                                  CB = fun
                                           ({message, M}) ->
-                                              efka_remote_agent:task_event_stream(TaskId, <<"info">>, M),
-                                              efka_logger:write(format_log(TaskId, <<"info">>, M));
+                                              log(TaskId, <<"info">>, M);
                                           ({error, Error}) ->
-                                              efka_remote_agent:task_event_stream(TaskId, <<"error">>, Error),
-                                              efka_logger:write(format_log(TaskId, <<"error">>, Error))
+                                              log(TaskId, <<"error">>, Error)
                                       end,
                                  docker_commands:pull_image(Image, CB)
                          end,
 
             case PullResult of
                 ok ->
-                    Msg5 = <<"开始创建容器: "/utf8, ContainerName/binary>>,
-                    efka_remote_agent:task_event_stream(TaskId, <<"info">>, Msg5),
-                    efka_logger:write(format_log(TaskId, <<"info">>, Msg5)),
-
+                    log(TaskId, <<"info">>, <<"开始创建容器: "/utf8, ContainerName/binary>>),
                     case docker_commands:create_container(ContainerName, ContainerDir, Config) of
                         {ok, ContainerId} ->
                             %% 创建容器对应的配置文件
@@ -97,37 +81,19 @@ deploy(TaskId, ContainerDir, Config) when is_integer(TaskId), is_list(ContainerD
                                     file:close(FD);
                                 {error, Reason} ->
                                     Reason1 = list_to_binary(io_lib:format("~p", [Reason])),
-                                    Msg6 = <<"创建配置文件失败: "/utf8, Reason1/binary>>,
-                                    efka_remote_agent:task_event_stream(TaskId, <<"notice">>, Msg6),
-                                    efka_logger:write(format_log(TaskId, <<"notice">>, Msg6))
+                                    log(TaskId, <<"notice">>, <<"创建配置文件失败: "/utf8, Reason1/binary>>)
                             end,
                             ShortContainerId = binary:part(ContainerId, 1, 12),
-
-                            Msg7 = <<"容器创建成功: "/utf8, ShortContainerId/binary>>,
-                            efka_remote_agent:task_event_stream(TaskId, <<"info">>, Msg7),
-                            efka_logger:write(format_log(TaskId, <<"info">>, Msg7)),
-
-                            Msg8 = <<"任务完成"/utf8>>,
-                            efka_remote_agent:task_event_stream(TaskId, <<"info">>, Msg8),
-                            efka_logger:write(format_log(TaskId, <<"info">>, Msg8)),
-
+                            log(TaskId, <<"info">>, <<"容器创建成功: "/utf8, ShortContainerId/binary>>),
+                            log(TaskId, <<"info">>, <<"任务完成"/utf8>>),
                             efka_remote_agent:close_task_event_stream(TaskId);
                         {error, Reason} ->
-                            Msg9 = <<"容器创建失败: "/utf8, Reason/binary>>,
-                            efka_remote_agent:task_event_stream(TaskId, <<"error">>, Msg9),
-                            efka_logger:write(format_log(TaskId, <<"error">>, Msg9)),
-
-                            Msg10 = <<"任务失败"/utf8>>,
-                            efka_remote_agent:task_event_stream(TaskId, <<"error">>, Msg10),
-                            efka_logger:write(format_log(TaskId, <<"error">>, Msg10)),
-
+                            log(TaskId, <<"error">>, <<"容器创建失败: "/utf8, Reason/binary>>),
+                            log(TaskId, <<"error">>, <<"任务失败"/utf8>>),
                             efka_remote_agent:close_task_event_stream(TaskId)
                     end;
                 {error, Reason} ->
-                    Msg11 = <<"镜像拉取失败: "/utf8, Reason/binary>>,
-                    efka_remote_agent:task_event_stream(TaskId, <<"error">>, Msg11),
-                    efka_logger:write(format_log(TaskId, <<"error">>, Msg11)),
-
+                    log(TaskId, <<"error">>, <<"镜像拉取失败: "/utf8, Reason/binary>>),
                     efka_remote_agent:close_task_event_stream(TaskId)
             end
     end.
@@ -142,6 +108,8 @@ normalize_image(Image) when is_binary(Image) ->
                      end,
     iolist_to_binary(lists:join(<<"/">>, PrefixParts ++ [NormalizedLast])).
 
--spec format_log(Label :: binary(), TaskId :: integer(), Msg :: binary()) -> binary().
-format_log(TaskId, Label, Msg) when is_binary(Label), is_binary(Msg) ->
-    iolist_to_binary([<<"task_id=">>, integer_to_binary(TaskId), <<" ">>, Label, <<" ">>, Msg]).
\ No newline at end of file
+-spec log(TaskId :: integer(), Level :: binary(), Msg :: binary()) -> no_return().
+log(TaskId, Level, Msg) when is_integer(TaskId), is_binary(Level), is_binary(Msg) ->
+    efka_remote_agent:task_event_stream(TaskId, Level, Msg),
+    Info = iolist_to_binary([<<"task_id=">>, integer_to_binary(TaskId), <<" ">>, Level, <<" ">>, Msg]),
+    efka_logger:write(Info).
\ No newline at end of file
diff --git a/apps/efka/src/docker/docker_http.erl b/apps/efka/src/docker/docker_http.erl
index e3183c3..ecc049c 100644
--- a/apps/efka/src/docker/docker_http.erl
+++ b/apps/efka/src/docker/docker_http.erl
@@ -3,21 +3,16 @@
 -export([request/4, stream_request/5]).
 
 %% 通过 Unix Socket 调用 Docker API
--spec request(Method :: iolist(), Path :: string(), Body :: binary() | undefined, Headers :: list()) ->
+-spec request(Method :: string(), Path :: string(), Body :: binary() | undefined, Headers :: list()) ->
     {ok, StatusCode :: integer(), RespHeaders :: proplists:proplist(), RespBody :: binary()} | {error, any()}.
-request(Method, Path, Body, Headers) when is_list(Method); is_binary(Method), is_list(Path), is_binary(Body), is_list(Headers) ->
+request(Method, Path, Body, Headers) when is_list(Method), is_list(Path), is_binary(Body), is_list(Headers) ->
     SocketPath = "/var/run/docker.sock",
     %% 使用 gun:open/2 + {local, Path} 方式
     case gun:open_unix(SocketPath, #{}) of
         {ok, ConnPid} ->
             {ok, http} = gun:await_up(ConnPid),
-            %% 如果 Body 是 undefined，就用 <<>> 代替
-            BodyBin = case Body of
-                          undefined -> <<>>;
-                          B when is_binary(B) -> B
-                      end,
             %% 发送 HTTP 请求
-            StreamRef = gun:request(ConnPid, Method, Path, Headers, BodyBin),
+            StreamRef = gun:request(ConnPid, Method, Path, Headers, Body),
             receive_response(ConnPid, StreamRef);
         {error, Reason} ->
             {error, Reason}
@@ -32,7 +27,7 @@ receive_response(ConnPid, StreamRef) ->
         {gun_down, ConnPid, _, Reason, _} ->
             {error, {http_closed, Reason}}
     after 5000 ->
-        {error, timeout11}
+        {error, timeout}
     end.
 receive_body(ConnPid, StreamRef, Status, Headers, Acc) ->
     receive
diff --git a/apps/efka/src/efka_logger.erl b/apps/efka/src/efka_logger.erl
index b6a4291..db3b69a 100644
--- a/apps/efka/src/efka_logger.erl
+++ b/apps/efka/src/efka_logger.erl
@@ -29,7 +29,8 @@
 %%% API
 %%%===================================================================
 
-write(Data) ->
+-spec write(Data :: binary()) -> no_return().
+write(Data) when is_binary(Data) ->
     gen_server:cast(?SERVER, {write, Data}).
 
 write_lines(Lines) when is_list(Lines) ->
diff --git a/apps/efka/src/ws_channel.erl b/apps/efka/src/ws_channel.erl
index 19d972d..2eec84b 100644
--- a/apps/efka/src/ws_channel.erl
+++ b/apps/efka/src/ws_channel.erl
@@ -18,7 +18,7 @@
 -define(PENDING_TIMEOUT, 10 * 1000).
 
 -record(state, {
-    service_id :: binary(),
+    service_id :: undefined | binary(),
     service_pid :: undefined | pid(),
     is_registered = false :: boolean()
 }).